mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-12-25 01:20:30 +00:00
116 lines
3.4 KiB
JavaScript
116 lines
3.4 KiB
JavaScript
/*\
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title: $:/core/modules/deserializers.js
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type: application/javascript
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module-type: tiddlerdeserializer
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Plugins to deserialise tiddlers from a block of text
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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/*
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Utility function to parse an old-style tiddler DIV. It looks like this:
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<div title="Title" creator="JoeBloggs" modifier="JoeBloggs" created="201102111106" modified="201102111310" tags="myTag [[my long tag]]">
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<pre>The text of the tiddler (without the expected HTML encoding).
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</pre>
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</div>
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Note that the field attributes are HTML encoded, but that the body of the <PRE> tag is not.
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*/
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var parseTiddlerDiv = function(text,fields) {
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var result = {};
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if(fields) {
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for(var t in fields) {
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result[t] = fields[t];
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}
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}
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var divRegExp = /^\s*<div\s+([^>]*)>((?:.|\n)*)<\/div>\s*$/gi,
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subDivRegExp = /^\s*<pre>((?:.|\n)*)<\/pre>\s*$/gi,
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attrRegExp = /\s*([^=\s]+)\s*=\s*"([^"]*)"/gi,
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match = divRegExp.exec(text);
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if(match) {
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var subMatch = subDivRegExp.exec(match[2]); // Body of the <DIV> tag
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if(subMatch) {
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result.text = subMatch[1];
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} else {
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result.text = match[2];
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}
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var attrMatch;
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do {
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attrMatch = attrRegExp.exec(match[1]);
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if(attrMatch) {
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var name = attrMatch[1];
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var value = attrMatch[2];
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result[name] = value;
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}
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} while(attrMatch);
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}
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return result;
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};
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exports["application/x-tiddler-html-div"] = function(text,fields) {
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return [parseTiddlerDiv(text,fields)];
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};
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exports["application/json"] = function(text,fields) {
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var tiddlers = JSON.parse(text),
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result = [],
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getKnownFields = function(tid) {
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var fields = {};
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"title text created creator modified modifier type tags".split(" ").forEach(function(value) {
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fields[value] = tid[value];
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});
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return fields;
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};
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for(var t=0; t<tiddlers.length; t++) {
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result.push(getKnownFields(tiddlers[t]));
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}
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return result;
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};
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exports["application/x-tiddlywiki"] = function(text,fields) {
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var locateStoreArea = function(tiddlywikidoc) {
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var startSaveArea = '<div id="' + 'storeArea">',
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startSaveAreaRegExp = /<div id=["']?storeArea['"]?>/gi,
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endSaveArea = '</d' + 'iv>',
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endSaveAreaCaps = '</D' + 'IV>',
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posOpeningDiv = tiddlywikidoc.search(startSaveAreaRegExp),
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limitClosingDiv = tiddlywikidoc.indexOf("<"+"!--POST-STOREAREA--"+">");
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if(limitClosingDiv == -1) {
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limitClosingDiv = tiddlywikidoc.indexOf("<"+"!--POST-BODY-START--"+">");
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}
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var start = limitClosingDiv == -1 ? tiddlywikidoc.length : limitClosingDiv,
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posClosingDiv = tiddlywikidoc.lastIndexOf(endSaveArea,start);
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if(posClosingDiv == -1) {
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posClosingDiv = tiddlywikidoc.lastIndexOf(endSaveAreaCaps,start);
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}
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return (posOpeningDiv != -1 && posClosingDiv != -1) ? [posOpeningDiv + startSaveArea.length,posClosingDiv] : null;
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},
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results = [],
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storeAreaPos = locateStoreArea(text);
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if(storeAreaPos) {
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var endOfDivRegExp = /(<\/div>\s*)/gi,
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startPos = storeAreaPos[0];
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endOfDivRegExp.lastIndex = startPos;
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var match = endOfDivRegExp.exec(text);
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while(match && startPos < storeAreaPos[1]) {
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var endPos = endOfDivRegExp.lastIndex,
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tiddlerFields = parseTiddlerDiv(text.substring(startPos,endPos),fields);
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if(tiddlerFields.text !== null) {
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tiddlerFields.text = $tw.utils.htmlDecode(tiddlerFields.text);
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results.push(tiddlerFields);
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}
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startPos = endPos;
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match = endOfDivRegExp.exec(text);
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}
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}
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return results;
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};
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})();
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